Improper Input Validation Affecting webkitgtk4 package, versions <0:2.38.5-3.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-AMZN2-WEBKITGTK4-5702531
  • published13 Jun 2023
  • disclosed20 Oct 2021

Introduced: 20 Oct 2021

CVE-2021-42762  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 webkitgtk4 to version 0:2.38.5-3.amzn2.0.1 or higher.
This issue was patched in ALAS2-2023-2088.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkitgtk4 package and not the webkitgtk4 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit before 2.34.1 allows a limited sandbox bypass that allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by the sandbox, by abusing VFS syscalls that manipulate its filesystem namespace. The impact is limited to host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process remains otherwise confined. NOTE: this is similar to CVE-2021-41133.

CVSS Scores

version 3.1